JUKI HZL-G Series Service Manual page 33

No. Item name
8 THREAD TRIM CHECK
9 Tension release
0 STRAIGHT 500STI/MIN
 LCD FLASH TEST
For adjusting the thread
2
trimming mechanism base
3 Reserved
4 FEED PULSE TEST
5 FEED PULSE TEST2
6 Reserved
7 WIND PWM
8 Reserved
9 Reserved
Thread trimming condition can be checked.
Perform thread trimming halfway by using the "OK"
From this condition, manually turn the main shaft to carry out the thread
trimming sequence in order.
Bring the disks to the floating condition.
Operate the "OK" button, and the disks will float.
The maximum sewing speed is 500 sti/min (SPM) when the straight stitch
pattern is selected.
Indications on the LCD can be checked.
Every time the "OK" button is pressed, the LCD lights up entirely and goes
out entirely.
Press the OK button to carry out thread trimming partway.
When the thread trimming operation stops, check the lateral position of
the thread trimming mechanism base.
A straight line can be sewn with the amount of feed determined by the
number of pulses.
The straight stitch is selected as the sewing pattern.
The number of pulses of feed can be adjusted using the "feed amount
adjusting" button.
The straight stitch pattern can be sewn with the feed amount determined
by the adjusted number of pulses.
Zigzag stitch can be sewn with the amount of feed determined by the
number of pulses.
The zigzag stitch is selected as the sewing pattern.
The number of pulses of feed can be adjusted using the "feed amount
adjusting" button.
The zigzag stitch pattern can be sewn with the feed amount determined
by the adjusted number of pulses.
Output value of PWM for the bobbin winder is set.
The PWM output value can be adjusted using the "zigzag width adjusting"
button.
It is possible to make adjustment while rotating the bobbin winder under
the service mode. (The larger the value is, the faster the speed becomes.)
The adjustable range of PWM output value is [5.0 to 79.].
（Default is 54.0. Adjustment is made in increments of 0.5. Note that the
indication is given in increments of 0, .
– 3 –
Description
button
.